DataToolsLab
Image Tools

Image Diff

Visually compare two images pixel-by-pixel and highlight differing regions.

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What is Image Diff?

Upload two images and see a visual diff overlay highlighting which pixels are different, with a percentage difference readout.

How it works

We compare each pixel's RGB values between the two images. Pixels exceeding the threshold are highlighted in red.

  1. Upload. Upload Image A and Image B.
  2. Set threshold. Adjust the sensitivity threshold.
  3. Compare. See the diff overlay and difference percentage.

Examples

UI screenshot comparison

Compare two screenshots to find exactly what changed.

Frequently asked questions

What does the threshold control?

It sets how different two pixel colors must be (0-255 per channel) to count as 'different'. Lower = more sensitive.

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